Drawdio is an Interaction Design project by Jay Silver, which augments a conventional graphite pencil, and in turn creates a musical instrument which is controlled through the stroke and gesture of the performers hands.
Drawdio makes use of a graphite pencil, a 555 Timer, a couple of capacitors and resistors, a speaker and battery.
Visit Drawdio, Drawdio’ing Tips
LM555 Timer Datasheet LM555
LM386 Datasheet LM386
